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155084130 = 23252277591
BaseRepresentation
bin10010011111001…
…10010101100010
3101210211002102200
421033212111202
5304200143010
623215554030
73562123215
oct1117462542
9353732380
10155084130
117a5a5003
1243b2b916
132618c076
141684d77c
15d935cc0
hex93e6562

155084130 has 48 divisors (see below), whose sum is σ = 405048384. Its totient is φ = 41168160.

The previous prime is 155084123. The next prime is 155084159. The reversal of 155084130 is 31480551.

155084130 is a `hidden beast` number, since 1 + 550 + 84 + 1 + 30 = 666.

155084130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155084094 and 155084103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16635 + ... + 24225.

It is an arithmetic number, because the mean of its divisors is an integer number (8438508).

Almost surely, 2155084130 is an apocalyptic number.

155084130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155084130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202524192).

155084130 is an abundant number, since it is smaller than the sum of its proper divisors (249964254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155084130 is a wasteful number, since it uses less digits than its factorization.

155084130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7831 (or 7828 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 155084130 is about 12453.2778817466. The cubic root of 155084130 is about 537.2657049891.

The spelling of 155084130 in words is "one hundred fifty-five million, eighty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 227 454 681 1135 1362 2043 2270 3405 4086 6810 7591 10215 15182 20430 22773 37955 45546 68319 75910 113865 136638 227730 341595 683190 1723157 3446314 5169471 8615785 10338942 15508413 17231570 25847355 31016826 51694710 77542065 155084130